/* * DisMan Event MIB: * Implementation of the mteTriggerBooleanTable MIB interface * See 'mteTrigger.c' for active behaviour of this table. * * (based on mib2c.table_data.conf output) */ #include #include #include #include #include "disman/event/mteTrigger.h" #include "disman/event/mteTriggerBooleanTable.h" netsnmp_feature_require(table_tdata); #ifndef NETSNMP_NO_WRITE_SUPPORT netsnmp_feature_require(check_vb_type_and_max_size); netsnmp_feature_require(check_vb_truthvalue); #endif /* NETSNMP_NO_WRITE_SUPPORT */ static netsnmp_table_registration_info *table_info; /** Initializes the mteTriggerBooleanTable module */ void init_mteTriggerBooleanTable(void) { static oid mteTBoolTable_oid[] = { 1, 3, 6, 1, 2, 1, 88, 1, 2, 5 }; size_t mteTBoolTable_oid_len = OID_LENGTH(mteTBoolTable_oid); netsnmp_handler_registration *reg; /* * Ensure the (combined) table container is available... */ init_trigger_table_data(); /* * ... then set up the MIB interface to the mteTriggerBooleanTable slice */ #ifndef NETSNMP_NO_WRITE_SUPPORT reg = netsnmp_create_handler_registration("mteTriggerBooleanTable", mteTriggerBooleanTable_handler, mteTBoolTable_oid, mteTBoolTable_oid_len, HANDLER_CAN_RWRITE); #else /* !NETSNMP_NO_WRITE_SUPPORT */ reg = netsnmp_create_handler_registration("mteTriggerBooleanTable", mteTriggerBooleanTable_handler, mteTBoolTable_oid, mteTBoolTable_oid_len, HANDLER_CAN_RWRITE); #endif /* !NETSNMP_NO_WRITE_SUPPORT */ table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info); netsnmp_table_helper_add_indexes(table_info, ASN_OCTET_STR, /* index: mteOwner */ /* index: mteTriggerName */ ASN_PRIV_IMPLIED_OCTET_STR, 0); table_info->min_column = COLUMN_MTETRIGGERBOOLEANCOMPARISON; table_info->max_column = COLUMN_MTETRIGGERBOOLEANEVENT; /* Register this using the (common) trigger_table_data container */ netsnmp_tdata_register(reg, trigger_table_data, table_info); DEBUGMSGTL(("disman:event:init", "Trigger Bool Table\n")); } void shutdown_mteTriggerBooleanTable(void) { if (table_info) { netsnmp_table_registration_info_free(table_info); table_info = NULL; } } /** handles requests for the mteTriggerBooleanTable table */ int mteTriggerBooleanTable_handler(netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests) { netsnmp_request_info *request; netsnmp_table_request_info *tinfo; struct mteTrigger *entry; int ret; DEBUGMSGTL(("disman:event:mib", "Boolean Table handler (%d)\n", reqinfo->mode)); switch (reqinfo->mode) { /* * Read-support (also covers GetNext requests) */ case MODE_GET: for (request = requests; request; request = request->next) { if (request->processed) continue; entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); tinfo = netsnmp_extract_table_info(request); /* * The mteTriggerBooleanTable should only contains entries for * rows where the mteTriggerTest 'boolean(1)' bit is set. * So skip entries where this isn't the case. */ if (!entry || !(entry->mteTriggerTest & MTE_TRIGGER_BOOLEAN )) { netsnmp_request_set_error(request, SNMP_NOSUCHINSTANCE); continue; } switch (tinfo->colnum) { case COLUMN_MTETRIGGERBOOLEANCOMPARISON: snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, entry->mteTBoolComparison); break; case COLUMN_MTETRIGGERBOOLEANVALUE: snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, entry->mteTBoolValue); break; case COLUMN_MTETRIGGERBOOLEANSTARTUP: ret = (entry->flags & MTE_TRIGGER_FLAG_BSTART ) ? TV_TRUE : TV_FALSE; snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret); break; case COLUMN_MTETRIGGERBOOLEANOBJECTSOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTBoolObjOwner, strlen(entry->mteTBoolObjOwner)); break; case COLUMN_MTETRIGGERBOOLEANOBJECTS: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTBoolObjects, strlen(entry->mteTBoolObjects)); break; case COLUMN_MTETRIGGERBOOLEANEVENTOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTBoolEvOwner, strlen(entry->mteTBoolEvOwner)); break; case COLUMN_MTETRIGGERBOOLEANEVENT: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTBoolEvent, strlen(entry->mteTBoolEvent)); break; } } break; #ifndef NETSNMP_NO_WRITE_SUPPORT /* * Write-support */ case MODE_SET_RESERVE1: for (request = requests; request; request = request->next) { if (request->processed) continue; entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); tinfo = netsnmp_extract_table_info(request); /* * Since the mteTriggerBooleanTable only contains entries for * rows where the mteTriggerTest 'boolean(1)' bit is set, * strictly speaking we should reject assignments where * this isn't the case. * But SET requests that include an assignment of the * 'boolean(1)' bit at the same time are valid, so would * need to be accepted. Unfortunately, this assignment * is only applied in the COMMIT pass, so it's difficult * to detect whether this holds or not. * * Let's fudge things for now, by processing assignments * even if the 'boolean(1)' bit isn't set. */ switch (tinfo->colnum) { case COLUMN_MTETRIGGERBOOLEANCOMPARISON: ret = netsnmp_check_vb_int_range(request->requestvb, MTE_BOOL_UNEQUAL, MTE_BOOL_GREATEREQUAL); if (ret != SNMP_ERR_NOERROR) { netsnmp_set_request_error(reqinfo, request, ret); return SNMP_ERR_NOERROR; } break; case COLUMN_MTETRIGGERBOOLEANVALUE: ret = netsnmp_check_vb_int(request->requestvb); if (ret != SNMP_ERR_NOERROR) { netsnmp_set_request_error(reqinfo, request, ret); return SNMP_ERR_NOERROR; } break; case COLUMN_MTETRIGGERBOOLEANSTARTUP: ret = netsnmp_check_vb_truthvalue(request->requestvb); if (ret != SNMP_ERR_NOERROR) { netsnmp_set_request_error(reqinfo, request, ret); return SNMP_ERR_NOERROR; } break; case COLUMN_MTETRIGGERBOOLEANOBJECTSOWNER: case COLUMN_MTETRIGGERBOOLEANOBJECTS: case COLUMN_MTETRIGGERBOOLEANEVENTOWNER: case COLUMN_MTETRIGGERBOOLEANEVENT: ret = netsnmp_check_vb_type_and_max_size( request->requestvb, ASN_OCTET_STR, MTE_STR1_LEN); if (ret != SNMP_ERR_NOERROR) { netsnmp_set_request_error(reqinfo, request, ret); return SNMP_ERR_NOERROR; } break; default: netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE); return SNMP_ERR_NOERROR; } /* * The Event MIB is somewhat ambiguous as to whether the * various trigger table entries can be modified once the * main mteTriggerTable entry has been marked 'active'. * But it's clear from discussion on the DisMan mailing * list is that the intention is not. * * So check for whether this row is already active, * and reject *all* SET requests if it is. */ entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); if (entry && entry->flags & MTE_TRIGGER_FLAG_ACTIVE ) { netsnmp_set_request_error(reqinfo, request, SNMP_ERR_INCONSISTENTVALUE); return SNMP_ERR_NOERROR; } } break; case MODE_SET_RESERVE2: case MODE_SET_FREE: case MODE_SET_UNDO: break; case MODE_SET_ACTION: for (request = requests; request; request = request->next) { if (request->processed) continue; entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); if (!entry) { /* * New rows must be created via the RowStatus column * (in the main mteTriggerTable) */ netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOCREATION); /* or inconsistentName? */ return SNMP_ERR_NOERROR; } } break; case MODE_SET_COMMIT: /* * All these assignments are "unfailable", so it's * (reasonably) safe to apply them in the Commit phase */ for (request = requests; request; request = request->next) { if (request->processed) continue; entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); tinfo = netsnmp_extract_table_info(request); switch (tinfo->colnum) { case COLUMN_MTETRIGGERBOOLEANCOMPARISON: entry->mteTBoolComparison = *request->requestvb->val.integer; break; case COLUMN_MTETRIGGERBOOLEANVALUE: entry->mteTBoolValue = *request->requestvb->val.integer; break; case COLUMN_MTETRIGGERBOOLEANSTARTUP: if (*request->requestvb->val.integer == TV_TRUE) entry->flags |= MTE_TRIGGER_FLAG_BSTART; else entry->flags &= ~MTE_TRIGGER_FLAG_BSTART; break; case COLUMN_MTETRIGGERBOOLEANOBJECTSOWNER: memset(entry->mteTBoolObjOwner, 0, sizeof(entry->mteTBoolObjOwner)); memcpy(entry->mteTBoolObjOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERBOOLEANOBJECTS: memset(entry->mteTBoolObjects, 0, sizeof(entry->mteTBoolObjects)); memcpy(entry->mteTBoolObjects, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERBOOLEANEVENTOWNER: memset(entry->mteTBoolEvOwner, 0, sizeof(entry->mteTBoolEvOwner)); memcpy(entry->mteTBoolEvOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERBOOLEANEVENT: memset(entry->mteTBoolEvent, 0, sizeof(entry->mteTBoolEvent)); memcpy(entry->mteTBoolEvent, request->requestvb->val.string, request->requestvb->val_len); break; } } break; #endif /* !NETSNMP_NO_WRITE_SUPPORT */ } return SNMP_ERR_NOERROR; }